20041155 has 32 divisors (see below), whose sum is σ = 36313920. Its totient is φ = 10483200.

The previous prime is 20041121. The next prime is 20041183. The reversal of 20041155 is 55114002.

20041155 is a `hidden beast` number, since 200 + 411 + 55 = 666.

It is not a de Polignac number, because 20041155 - 2⁸ = 20040899 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5755 + ... + 8555.

It is an arithmetic number, because the mean of its divisors is an integer number (1134810).

Almost surely, 2^20041155 is an apocalyptic number.

20041155 is a deficient number, since it is larger than the sum of its proper divisors (16272765).

20041155 is a wasteful number, since it uses less digits than its factorization.

20041155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868 (or 2862 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 20041155 is about 4476.7348592473. The cubic root of 20041155 is about 271.6278205253.

Adding to 20041155 its reverse (55114002), we get a palindrome (75155157).

The spelling of 20041155 in words is "twenty million, forty-one thousand, one hundred fifty-five".